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authorMatthew Barnes <mbarnes@redhat.com>2009-11-27 10:16:40 +0800
committerMatthew Barnes <mbarnes@redhat.com>2009-11-27 10:18:59 +0800
commitc6727d66ade72df6fbaff9f111a06993aeefdecc (patch)
tree85f609c96e7606251b26f46e1b64ddb47ce4a61e /shell
parent4837f2a2530c35c8f7076817e1341ddcf05b4ef7 (diff)
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Implement a new 'killev' program.
For now this only terminates Evolution, but the same basic approach should also be used with the Evolution-Data-Server D-Bus services.
Diffstat (limited to 'shell')
-rw-r--r--shell/Makefile.am18
-rw-r--r--shell/killev.c158
-rw-r--r--shell/main.c22
3 files changed, 178 insertions, 20 deletions
diff --git a/shell/Makefile.am b/shell/Makefile.am
index 541f941e58..6ff40baab7 100644
--- a/shell/Makefile.am
+++ b/shell/Makefile.am
@@ -114,12 +114,12 @@ evolution_CPPFLAGS = \
-DEVOLUTION_ICONDIR=\""$(icondir)"\" \
-DEVOLUTION_MODULEDIR=\""$(moduledir)"\" \
-DEVOLUTION_RULEDIR=\""$(privdatadir)"\" \
+ -DEVOLUTION_TOOLSDIR=\""$(privlibexecdir)"\" \
-DEVOLUTION_UIDIR=\""$(uidir)"\" \
-DPREFIX=\""$(prefix)"\" \
-DSYSCONFDIR=\""$(sysconfdir)"\" \
-DDATADIR=\""$(datadir)"\" \
-DLIBDIR=\""$(datadir)"\" \
- -DG_LOG_DOMAIN=\"evolution-shell\" \
$(TZDIALOG_CFLAGS) \
$(SHELL_CFLAGS)
@@ -142,6 +142,22 @@ if OS_WIN32
evolution_LDFLAGS = -mwindows
endif
+# Killev utility
+
+if OS_WIN32
+else
+privlibexec_PROGRAMS = killev
+endif
+
+killev_CPPFLAGS = \
+ $(AM_CPPFLAGS) \
+ -DEVOLUTION_LOCALEDIR=\""$(localedir)"\" \
+ $(GNOME_PLATFORM_CFLAGS)
+
+killev_SOURCES = killev.c
+
+killev_LDADD = $(GNOME_PLATFORM_LIBS)
+
# Misc stuff
error_DATA = shell.error
diff --git a/shell/killev.c b/shell/killev.c
new file mode 100644
index 0000000000..d1eb523495
--- /dev/null
+++ b/shell/killev.c
@@ -0,0 +1,158 @@
+/*
+ * killev.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#include <config.h>
+
+#include <signal.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/wait.h>
+
+#include <gio/gio.h>
+#include <glib/gi18n.h>
+
+/* Seconds to wait after asking Evolution to terminate gracefully.
+ * If the process has not terminated before the timeout expires,
+ * then we get violent. */
+#define EVOLUTION_SHUTDOWN_TIMEOUT 5
+
+static GPid evolution_pid;
+static GMainLoop *main_loop;
+
+static void
+file_monitor_changed_cb (GFileMonitor *monitor,
+ GFile *file,
+ GFile *not_used,
+ GFileMonitorEvent event_type)
+{
+ if (event_type != G_FILE_MONITOR_EVENT_DELETED)
+ return;
+
+ g_print ("Evolution process exited normally\n");
+
+ g_main_loop_quit (main_loop);
+}
+
+static gboolean
+evolution_not_responding_cb (void)
+{
+ g_print ("No response from Evolution -- killing the process\n");
+
+ /* Kill the process. */
+ kill ((pid_t) evolution_pid, SIGTERM);
+
+ g_main_loop_quit (main_loop);
+
+ return FALSE;
+}
+
+static gboolean
+get_evolution_pid (GFile *file)
+{
+ gint64 v_int64;
+ gchar *contents = NULL;
+ gboolean success = FALSE;
+
+ /* Try to read Evolution's PID from its .running file. */
+
+ if (!g_file_load_contents (file, NULL, &contents, NULL, NULL, NULL))
+ goto exit;
+
+ /* Try to extract an integer value from the string. */
+ v_int64 = g_ascii_strtoll (contents, NULL, 10);
+ if (!(v_int64 > 0 && v_int64 < G_MAXINT64))
+ goto exit;
+
+ /* XXX Probably not portable. */
+ evolution_pid = (GPid) v_int64;
+
+ success = TRUE;
+
+exit:
+ g_free (contents);
+
+ return success;
+}
+
+gint
+main (gint argc, gchar **argv)
+{
+ GFile *pid_file;
+ GFileMonitor *monitor;
+ gchar *filename;
+ GError *error = NULL;
+
+ bindtextdomain (GETTEXT_PACKAGE, EVOLUTION_LOCALEDIR);
+ bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+ textdomain (GETTEXT_PACKAGE);
+
+ g_type_init ();
+
+ /* XXX If e_get_user_data_dir() ever gets moved to libedataserver,
+ * use that instead of hard-coding the directory path here. */
+ filename = g_build_filename (
+ g_get_home_dir (), ".evolution", ".running", NULL);
+ pid_file = g_file_new_for_path (filename);
+ g_free (filename);
+
+ if (!get_evolution_pid (pid_file)) {
+ g_printerr ("Could not find Evolution's process ID\n");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Play it safe here and bail if something goes wrong. We don't
+ * want to just skip to the killing if we can't ask Evolution to
+ * terminate gracefully. Despite our name we actually want to
+ * -avoid- killing Evolution if at all possible. */
+ if (!g_spawn_command_line_async ("evolution --quit", &error)) {
+ g_printerr ("%s", error->message);
+ g_error_free (error);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Now we set up a monitor on Evolution's .running file.
+ * If Evolution is still responsive it will delete this
+ * file just before terminating and we'll be notified. */
+ monitor = g_file_monitor_file (pid_file, 0, NULL, &error);
+ if (error != NULL) {
+ g_printerr ("%s", error->message);
+ g_error_free (error);
+ exit (EXIT_FAILURE);
+ }
+
+ g_signal_connect (
+ monitor, "changed",
+ G_CALLBACK (file_monitor_changed_cb), NULL);
+
+ g_timeout_add_seconds (
+ EVOLUTION_SHUTDOWN_TIMEOUT, (GSourceFunc)
+ evolution_not_responding_cb, NULL);
+
+ /* Start the clock. */
+
+ main_loop = g_main_loop_new (NULL, TRUE);
+ g_main_loop_run (main_loop);
+ g_main_loop_unref (main_loop);
+
+ g_object_unref (monitor);
+
+ return EXIT_SUCCESS;
+}
diff --git a/shell/main.c b/shell/main.c
index 396cd690fa..c37ccc4d6c 100644
--- a/shell/main.c
+++ b/shell/main.c
@@ -390,26 +390,10 @@ set_paths (void)
static void G_GNUC_NORETURN
shell_force_shutdown (void)
{
- gchar *program;
+ gchar *filename;
- /* This is not as destructive as it was in the Bonobo era.
- * The Evolution-Data-Server D-Bus services should not be killed
- * because other programs may be using them. The alarm daemon is
- * an autostart program now and Evolution no longer spawns it, so
- * that should not be killed either. The only thing left to do
- * really is shoot ourselves. */
-
- /* XXX Maybe --force-shutdown should be deprecated. */
-
- program = g_find_program_in_path ("pkill");
-
- if (program == NULL) {
- g_printerr ("Could not find `pkill' program in path.\n");
- exit (1);
- }
-
- /* This does not return. */
- execl (program, "pkill", "evolution", NULL);
+ filename = g_build_filename (EVOLUTION_TOOLSDIR, "killev", NULL);
+ execl (filename, "killev", NULL);
g_assert_not_reached ();
}